EP2421832A1 - N-alcoxy-amides de 6-(phényle substitué)-4-aminopicolinates et de 2-(phényle substitué)-6-amino-4-pyrimidinecarboxylates et leur utilisation comme herbicides sélectifs pour les cultures - Google Patents

N-alcoxy-amides de 6-(phényle substitué)-4-aminopicolinates et de 2-(phényle substitué)-6-amino-4-pyrimidinecarboxylates et leur utilisation comme herbicides sélectifs pour les cultures

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Publication number
EP2421832A1
EP2421832A1 EP10706859A EP10706859A EP2421832A1 EP 2421832 A1 EP2421832 A1 EP 2421832A1 EP 10706859 A EP10706859 A EP 10706859A EP 10706859 A EP10706859 A EP 10706859A EP 2421832 A1 EP2421832 A1 EP 2421832A1
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Prior art keywords
compound
alkyl
substituted
unsubstituted
chloro
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EP10706859A
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German (de)
English (en)
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EP2421832B1 (fr
Inventor
Joseph Eckelbarger
Paul Schmitzer
Carla Yerkes
Timothy Boebel
Norbert Satchivi
Gregory Whiteker
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Corteva Agriscience LLC
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Dow AgroSciences LLC
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Priority to PL10706859T priority Critical patent/PL2421832T3/pl
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Publication of EP2421832B1 publication Critical patent/EP2421832B1/fr
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/54—1,3-Diazines; Hydrogenated 1,3-diazines
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
    • A01N43/78—1,3-Thiazoles; Hydrogenated 1,3-thiazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/82—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with three ring hetero atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C07D213/81—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/30—Halogen atoms or nitro radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/32—One oxygen, sulfur or nitrogen atom
    • C07D239/42—One nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/06—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
    • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
    • C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
    • C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
    • C07H15/02—Acyclic radicals, not substituted by cyclic structures
    • C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical

Definitions

  • This application claims the benefit of United States Provisional Application Serial Number 61/156,088 filed on 27 February 2009.
  • This invention relates to certain novel N- alkoxyamides of 6-(substituted phenyl)-4-aminopicolinates and 2-(substituted phenyl)-6- amino-4-pyrimidinecarboxylates and to the use of these compounds as selective herbicides for corn, canola (oilseed rape) and sugar beet.
  • U.S. Patent 6,784,137 B2 and U.S. Patent 7,314,849 B2 disclose a genus of 6-aryl-4- aminopicolinic acids and their derivatives and their use as selective herbicides, particularly for rice and cereals such as wheat and barley.
  • Patent 7,300,907 B2 disclose certain 2- substituted-6-amino-4-pyrimidinecarboxylic acids and their derivatives and their use as herbicides. It has now been discovered that crop selectivity of certain N-alkoxyamides of 6- (substituted phenyl)-4-aminopicolinates and of 2-(substituted phenyl)-6-amino-4- pyrimidinecarboxylates can be extended to corn, canola and sugar beet.
  • the invention includes compounds of Formula I:
  • X represents CH, CF, or N
  • Y represents halogen, Ci-Cg alkyl, C 3 -C 6 cycloalkyl, or phenyl substituted with 1 - 4 substituents independently selected from halogen, C 1 -C 3 alkyl, C 3 -C 6 cycloalkyl, C 1 -C 3 alkoxy, C 1 -C3 haloalkyl, C 1 -C3 haloalkoxy, cyano, nitro, N(R 4 ) 2 , or where two adjacent substituents are taken together as -OCH 2 O-;
  • Z represents halogen, C 1 -C3 alkoxy, or C 2 -C 4 alkenyl
  • R 1 represents H, C 1 -C 3 alkyl, C 2 -C 4 acyl, or benzyl;
  • R 2 represents H, C 1 -C 3 alkyl, or C 2 -C 4 acyl
  • R 3 represents H, Ci-C 8 alkyl, C 3 -C 8 cycloalkyl, Ci-C 8 haloalkyl, C 3 -C 8 alkoxyalkyl, C 2 -C 8 cyanoalkyl, C 2 -C 8 alkylcarbonyl, C 2 -C 8 alkenyl, C 5 -C 8 cycloalkenyl, C 2 -C 8 haloalkenyl, C 2 - C 8 alkynyl, unsubstituted or substituted phenyl, unsubstituted or substituted heteroaryl, unsubstituted or substituted heterocyclyl, alkylcycloalkyl, alkylcycloalkenyl, unsubstituted or substituted arylalkyl, or R 2 and R 3 together with the O and N atoms to which they are joined form an unsubstituted or substituted 5- to 7-membered ring optionally containing one further heteroatom selected from O
  • R 4 represents H or Ci-C 3 alkyl.
  • Preferred compounds include those in which X represents CH or N, Y represents substituted phenyl, Z represents halogen or methoxy, R 1 and R 2 represent hydrogen, and R 3 represents Ci-C 4 alkyl, C 2 -C 6 alkenyl or unsubstituted or/? ⁇ ra-substituted benzyl.
  • the invention includes herbicidal compositions comprising an herbicidally effective amount of a compound of Formula I in a mixture with an agriculturally acceptable adjuvant or carrier.
  • the invention also includes a method of use of the compounds and compositions of the present invention to kill or control undesirable vegetation by application of an herbicidal amount of the compound to the vegetation or to the locus of the vegetation as well as to the soil prior to emergence of the vegetation.
  • the invention further includes a method for the selective postemergent control of undesirable vegetation in the presence of corn, canola or sugar beet, which comprises applying to said undesirable vegetation an herbicidally effective amount of a compound of the present invention.
  • the invention also includes a method of making the compounds of the present invention.
  • the herbicidal compounds of the present invention are N-alkoxyamides of 6- (substituted phenyl)-4-aminopicolinic acids and 2-(substituted phenyl)-6-amino-4- pyrimidinecarboxylic acids and their derivatives.
  • the picolinic acids from which the N- alkoxyamides of Formula I are derived are a new class of compounds having herbicidal activity. A number of picolinic acid compounds are described in U.S. Patent 6,784,137 B2 and U.S.
  • Patent 7,314,849 B2 including 4-amino-3-chloro-6-(4-chloro-2-fluoro-3- methoxyphenyl)pyridine-2-carboxylic acid and 4-amino-3-chloro-6-(2,4-dichloro-3- methoxyphenyl)pyridine-2-carboxylic acid.
  • the pyrimidinecarboxylic acids from which the N-alkoxyamides of Formula I are derived are also a new class of compounds having herbicidal activity.
  • a number of pyrimidinecarboxylic acid compounds are described in WO 2005/063721 Al, WO 2007/082076 Al, U.S. Patent Appl. Publ. 2009/0062125 Al, U.S. Patent Appl. Publ.
  • Preferred N-alkoxyamide groups are those for which the concentration of herbicide that is required to reduce growth of broadleaf weeds by 80% (GRgo) is at least two times (2x) lower than the concentration of herbicide that causes damage to 20% of the crop (GR 2 0).
  • Preferred N-alkoxyamide groups for corn include the N-methoxyamide, N-(2- methylpropoxy)amide, N-(2-propenyloxy)amide and N-(2-propynyloxy)amide.
  • Preferred N- alkoxyamide groups for canola and sugar beet include the N-ethoxy amide.
  • An alkoxyamide can be prepared by reacting an acid chloride with a hydroxylamine or its conjugate acid, typically the hydrochloride salt, in the presence of a base.
  • bases include triethylamine, diisopropylethylamine, morpholine, and 1,8- diazabicyclo[5.4.0]undec-7-ene.
  • appropriate solvents for such a reaction include dichloromethane, 1,2-dichloroethane, diethyl ether, tetrahydrofuran, and ethyl acetate.
  • a typical reaction temperature range is from 0 0 C to 75 0 C and a typical reaction time ranges from 1 hour to 72 hours.
  • the hydroxylamine or its conjugate acid can be prepared by reacting 2-hydroxyisoindoline-l,3-dione (N-hydroxyphthalimide) with an alkyl halide, such as in Kim et al., Synth. Commun. 1992, 22, 1427-1432, or with an alcohol, such as in Mitsunobu, Synthesis 1981, 1-28, followed by deprotection of the phthalimide group with hydrazine.
  • O-((2 J R,3 J R,45',5 J R,6 J R)-3,4,5-trimethoxy-6-(methoxymethyl)tetrahydro-2H- pyran-2-yl)hydroxylamine was prepared as in Crouse et al., PCT Int.
  • O-(ferf-Butyldimethylsilyl)-N-methylhydroxylamine was prepared as in Knight et al., Tetrahedron 1997, 53, 11411-11424.
  • O-(Tetrahydrofuran-2-yl)hydroxylamine was prepared as in Ogawa et al., /. Med. Chem. 1998, 41, 5094-5107.
  • An alkoxyamide can also be prepared by reacting an ester, typically the methyl ester or ethyl ester, with a hydroxylamine.
  • Examples of appropriate solvents for such a reaction include tetrahydrofuran, 1,2- dimethoxy ethane, N,N-dimethylformamide, dimethyl sulfoxide, methyl alcohol, ethyl alcohol and water.
  • the typical reaction temperature range is from 23 0 C to 100 0 C and a typical reaction time range is from 1 hour to 120 hours.
  • An alkoxyamide can also be prepared by reacting an acid with an hydroxylamine or its conjugate acid, typically the hydrochloride salt, in the presence of an activating agent and, optionally, a base.
  • activating agents include dicyclohexyl carbodiimide, l-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, l,l'-carbonyl diimidazole, N,N'-disuccinimidyl carbonate, benzotriazol-1-yl- oxy-tris-(dimethylamino)-phosphonium hexafluorophosphate, and 2-chloro-l- methylpyridinium iodide.
  • Representative bases include triethylamine, diisopropylethylamine, 4-(dimethylamino)pyridine, morpholine, and l,8-diazabicyclo[5.4.0]undec-7-ene.
  • appropriate solvents for such a reaction include dichloromethane, 1,2-dichloroethane, diethyl ether, tetrahydrofuran, ethyl acetate, acetonitrile and N,N-dimethylformamide.
  • the typical reaction temperature range is from 0 0 C to 75 0 C and a typical reaction time range is from 1 hour to 72 hours. There are two preferred embodiments, shown in Scheme 1.
  • compound II is sequentially treated with l-ethyl-3-(3-dimethylaminopropyl)carbo- diimide hydrochloride, a hydroxylamine, and 4-(dimethylamino)pyridine in 1,2- dichloroethane at 23 0 C for 18 hours to provide compound I.
  • compound II is sequentially treated with l,l'-carbonyldiimidazole and a hydroxylamine in N,N- dimethylformamide at ambient temperature for 4 hours to provide compound I.
  • each may be unsubstituted or substituted with one or more substituents selected from but not limited to halogen, hydroxy, alkoxy, alkylthio, Ci-C 6 acyl, formyl, cyano, aryloxy or aryl, provided that the substituents are sterically compatible and the rules of chemical bonding and strain energy are satisfied.
  • substituents selected from but not limited to halogen, hydroxy, alkoxy, alkylthio, Ci-C 6 acyl, formyl, cyano, aryloxy or aryl, provided that the substituents are sterically compatible and the rules of chemical bonding and strain energy are satisfied.
  • alkenyl and “alkynyl” are intended to include one or more unsaturated bonds.
  • aryl refers to a phenyl or naphthyl group.
  • heteroaryl refers to a 5- or 6-membered aromatic ring containing one or more heteroatoms, viz., N, O or S; these heteroaromatic rings may be fused to other aromatic systems.
  • the aryl or heteroaryl substituents may be unsubstituted or substituted with one or more substituents selected from halogen, hydroxy, nitro, cyano, aryloxy, formyl, Ci-C 6 alkyl, C 2 -C6 alkenyl, C 2 -C6 alkynyl, Ci-C 6 alkoxy, halogenated Ci-C 6 alkyl, halogenated Ci-C 6 alkoxy, Ci-C 6 acyl, Ci-C 6 alkylthio, Ci-C 6 alkylsulfinyl, Ci-C 6 alkylsulfonyl, aryl, Ci-C 6 OC(O)alkyl, Ci-C 6
  • heterocyclyl refers to a 5- or 6-membered fully saturated or partially unsaturated ring containing one or more heteroatoms, viz., N, O or S; these heterocyclic rings may be fused to other non-aromatic systems.
  • tetrahydrofuranyl and “tetrahydropyranyl” refer to 5- and 6-membered rings containing a single oxygen atom in addition to the 4 or 5 carbon atoms.
  • /? ⁇ ra-substituted benzyl refers to a -CH 2 C 6 Hs group in which the H in the 4-position is substituted with a substituent selected from the group consisting of halogen, Cj-C 4 alkyl or Cj-C 4 alkoxy.
  • halogen includes fluorine, chlorine, bromine, and iodine.
  • the compounds of Formula I have been found to be useful as pre-emergence and post-emergence herbicides for corn, canola and sugar beet.
  • herbicide is used herein to mean an active ingredient that kills, controls or otherwise adversely modifies the growth of plants.
  • An herbicidally effective or vegetation controlling amount is an amount of active ingredient which causes an adversely modifying effect and includes deviations from natural development, killing, regulation, desiccation, retardation, and the like.
  • plants and vegetation include germinating seeds, emerging seedlings and established vegetation.
  • Herbicidal activity is exhibited by the compounds of the present invention when they are applied directly to the plant or to the locus of the plant at any stage of growth or before planting or emergence. The effect observed depends upon the plant species to be controlled, the stage of growth of the plant, the application parameters of dilution and spray drop size, the particle size of solid components, the environmental conditions at the time of use, the specific compound employed, the specific adjuvants and carriers employed, the soil type, and the like, as well as the amount of chemical applied. These and other factors can be adjusted as is known in the art to promote selective herbicidal action. Generally, it is preferred to apply the compounds of Formula I postemergence to relatively immature undesirable vegetation to achieve the maximum control of weeds.
  • the herbicidal compounds of the present invention are often applied in conjunction with one or more other herbicides to control a wider variety of undesirable vegetation.
  • the presently claimed compounds can be formulated with the other herbicide or herbicides, tank mixed with the other herbicide or herbicides or applied sequentially with the other herbicide or herbicides.
  • the herbicidal compounds of the present invention can, further, be used in conjunction with glyphosate, glufosinate, dicamba, imidazolinones or 2,4-D on glyphosate- tolerant, glufosinate-tolerant, dicamba-tolerant, imidazolinone-tolerant or 2,4-D-tolerant crops. It is generally preferred to use the compounds of the invention in combination with herbicides that are selective for the crop being treated and which complement the spectrum of weeds controlled by these compounds at the application rate employed. It is further generally preferred to apply the compounds of the invention and other complementary herbicides at the same time, either as a combination formulation or as a tank mix.
  • the compounds of the present invention can generally be employed in combination with known herbicide safeners, such as benoxacor, benthiocarb, brassinolide, cloquintocet (mexyl), cyometrinil, cyprosulfamate, daimuron, dichlormid, dicyclonon, dietholate, dimepiperate, disulfoton, fenchlorazole-ethyl, fenclorim, flurazole, fluxofenim, furilazole, isoxadifen-ethyl, mefenpyr-diethyl, mephenate, MG 191, MON 4660, naphthalic anhydride (NA), oxabetrinil, R29148 and N-phenyl-sulfonylbenzoic acid amides, to enhance their selectivity.
  • known herbicide safeners such as benoxacor, benthiocarb, brassinolide, cloquintocet (mexy
  • plants can additionally be employed to control undesirable vegetation in many crops that have been made tolerant to or resistant to them or to other herbicides by genetic manipulation or by mutation and selection.
  • corn, wheat, rice, soybean, sugar beet, cotton, canola, and other crops that have been made tolerant or resistant to compounds that are acetolactate synthase inhibitors in sensitive plants can be treated.
  • Many glyphosate- and glufosinate-tolerant crops can be treated as well, alone or in combination with these herbicides.
  • Some crops have been made tolerant to auxinic herbicides such as 2,4- (dichlorophenoxy)acetic acid (2,4-D) and dicamba. These herbicides may be used to treat such resistant crops or other auxin tolerant crops.
  • Suitable adjuvants or carriers should not be phytotoxic to valuable crops, particularly at the concentrations employed in applying the compositions for selective weed control in the presence of crops, and should not react chemically with the compounds of Formula I or other composition ingredients.
  • Such mixtures can be designed for application directly to weeds or their locus or can be concentrates or formulations that are normally diluted with additional carriers and adjuvants before application.
  • They can be solids, such as, for example, dusts, granules, water dispersible granules, or wettable powders, or liquids, such as, for example, emulsifiable concentrates, solutions, emulsions or suspensions.
  • Suitable agricultural adjuvants and carriers that are useful in preparing the herbicidal mixtures of the invention are well known to those skilled in the art.
  • Some of these adjuvants include, but are not limited to, crop oil concentrate (mineral oil (85%) + emulsifiers (15%)); nonylphenol ethoxylate; benzylcocoalkyldimethyl quaternary ammonium salt; blend of petroleum hydrocarbon, alkyl esters, organic acid, and anionic surfactant; Cg-Cn alkylpolyglycoside; phosphated alcohol ethoxylate; natural primary alcohol (Ci 2 -Ci6) ethoxylate; di-seobutylphenol EO-PO block copolymer; polysiloxane-methyl cap; nonylphenol ethoxylate + urea ammonium nitrate; emulsified methylated seed oil; tridecyl alcohol (synthetic) ethoxylate (8EO); tallow
  • Liquid carriers that can be employed include water and organic solvents.
  • the organic solvents typically used include, but are not limited to, petroleum fractions or hydrocarbons such as mineral oil, aromatic solvents, paraffinic oils, and the like; vegetable oils such as soybean oil, rapeseed oil, olive oil, castor oil, sunflower seed oil, coconut oil, corn oil, cottonseed oil, linseed oil, palm oil, peanut oil, safflower oil, sesame oil, tung oil and the like; esters of the above vegetable oils; esters of monoalcohols or dihydric, trihydric, or other lower polyalcohols (4-6 hydroxy containing), such as 2-ethyl hexyl stearate, H-butyl oleate, isopropyl myristate, propylene glycol dioleate, di-octyl succinate, di-butyl adipate, di-octyl phthalate and the like; esters of mono, di and polycar
  • organic solvents include toluene, xylene, petroleum naphtha, crop oil, acetone, methyl ethyl ketone, cyclohexanone, trichloroethylene, perchloroethylene, ethyl acetate, amyl acetate, butyl acetate, propylene glycol monomethyl ether and diethylene glycol monomethyl ether, methyl alcohol, ethyl alcohol, isopropyl alcohol, amyl alcohol, ethylene glycol, propylene glycol, glycerine, N-methyl-2-pyrrolidinone, N,N-dimethyl alkylamides, dimethyl sulfoxide, liquid fertilizers and the like. Water is generally the carrier of choice for the dilution of concentrates.
  • Suitable solid carriers include talc, pyrophyllite clay, silica, attapulgus clay, kaolin clay, kieselguhr, chalk, diatomaceous earth, lime, calcium carbonate, bentonite clay, Fuller's earth, cottonseed hulls, wheat flour, soybean flour, pumice, wood flour, walnut shell flour, lignin, and the like.
  • compositions of the present invention are advantageously employed in both solid and liquid compositions, especially those designed to be diluted with carrier before application.
  • the surface-active agents can be anionic, cationic or nonionic in character and can be employed as emulsifying agents, wetting agents, suspending agents, or for other purposes.
  • Surfactants conventionally used in the art of formulation and which may also be used in the present formulations are described, inter alia, in "McCutcheon' s Detergents and Emulsifiers Annual," MC Publishing Corp., Ridgewood, New Jersey, 1998 and in “Encyclopedia of Surfactants,” Vol. I-III, Chemical Publishing Co., New York, 1980- 81.
  • Typical surface-active agents include salts of alkyl sulfates, such as diethanolammonium lauryl sulfate; alkylarylsulfonate salts, such as calcium dodecylbenzenesulfonate; alkylphenol-alkylene oxide addition products, such as nonylphenol-Ci8 ethoxylate; alcohol- alky lene oxide addition products, such as tridecyl alcohol-Ci6 ethoxylate; soaps, such as sodium stearate; alkylnaphthalene-sulfonate salts, such as sodium dibutyl- naphthalenesulfonate; dialkyl esters of sulfosuccinate salts, such as sodium di(2-ethylhexyl) sulfosuccinate; sorbitol esters, such as sorbitol oleate; quaternary amines, such as lauryl trimethylammonium chloride; polyethylene glycol
  • compositions may also contain other compatible components, for example, other herbicides, plant growth regulants, fungicides, insecticides, and the like and can be formulated with liquid fertilizers or solid, particulate fertilizer carriers such as ammonium nitrate, urea and the like.
  • the concentration of the active ingredients in the herbicidal compositions of this invention is generally from 0.001 to 98 percent by weight. Concentrations from 0.01 to 90 percent by weight are often employed. In compositions designed to be employed as concentrates, the active ingredient is generally present in a concentration from 5 to 98 weight percent, preferably 10 to 90 weight percent. Such compositions are typically diluted with an inert carrier, such as water, before application. The diluted compositions usually applied to weeds or the locus of weeds generally contain 0.0001 to 1 weight percent active ingredient and preferably contain 0.001 to 0.05 weight percent.
  • compositions can be applied to weeds or their locus by the use of conventional ground or aerial dusters, sprayers, and granule applicators, by addition to irrigation water, and by other conventional means known to those skilled in the art.
  • Triethylsilane (1.5 mL, 9.4 mmol, 1.1 equiv) and trifluoroacetic acid (6.3 mL, 85 mmol, 10 equiv) were sequentially added to a stirred solution of tert -butyl 2-propenyloxy(methyl)- carbamate (1.6 g, 8.5 mmol, 1.0 equiv) in CH 2 Cl 2 (21 mL) at 0 0 C.
  • the resulting pale pink solution was warmed to 23 0 C and stirred for 20 h.
  • the reaction mixture was diluted with 1 M aq hydrochloric acid (HCl; 300 mL).
  • the resulting white precipitate was vacuum filtered and rinsed with H 2 O to afford a white powder (2.3 g), which was dissolved in CH 2 CI 2 (53 mL).
  • Hydrazine hydrate (570 ⁇ L, 12 mmol, 1.1 equiv) was added and the resulting white suspension was stirred at 23 0 C for 18 h.
  • the reaction mixture was vacuum filtered.
  • the filtrate was diluted with 0.1 M aq NaOH (200 mL) and extracted with CH 2 CI 2 (3 x 50 mL).
  • Furan-3-ylmethanol (1.1 mL, 12 mmol, 1.0 equiv) was added to a stirred suspension of 2- hydroxyisoindoline-l,3-dione (N-hydroxyphthalimide; 2.0 g, 12 mmol, 1.0 equiv) and triphenylphosphine (3.2 g, 12 mmol, 1.0 equiv) in THF (40 mL).
  • the reaction vessel was equipped with an addition funnel containing diisopropyl azodicarboxylate (DIAD; 2.4 mL, 12 mmol, 1.0 equiv) and THF (21 mL) and that solution was added dropwise over 30 min.
  • DIAD diisopropyl azodicarboxylate
  • 1,3-Dichloropropane (1.6 mL, 15 mmol, 1.2 equiv) and DBU (1.8 mL, 12 mmol, 1.0 equiv) were sequentially added to a stirred solution of 2-hydroxyisoindoline-l,3-dione (N- hydroxyphthalimide; 2.0 g, 12 mmol, 1.0 equiv) in DMF (30 mL) at 23 0 C.
  • the resulting dark red solution was heated to 50 0 C and stirred for 18 h.
  • the resulting colorless solution was diluted with 1 M aq HCl (300 mL) and extracted with Et 2 O (2 x 100 mL).
  • the cooled reaction mixture was diluted with 1 M aq HCl (150 mL) and extracted with CH 2 Cl 2 (1 x 75 mL). The organic layer was dried (MgSO 4 ), gravity filtered, and concentrated by rotary evaporation. The residue was purified by silica gel column chromatography (25% EtOAc in hexane) to afford a colorless semisolid (400 mg), which was dissolved in CH 2 Cl 2 (8 mL). Hydrazine hydrate (90 ⁇ L, 1.9 mmol, 1.2 equiv) was added and the resulting white suspension was stirred at 23 0 C for 24 h. The reaction mixture was vacuum filtered.
  • Patent 7,314,849 B2 500 mg, 1.5 mmol, 1.0 equiv) and 1- ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (1.2 g, 6.0 mmol, 4.0 equiv) in 1,2-dichloroethane (5.0 mL) at 23 0 C. The resulting tan suspension was stirred at 23 0 C for 18 h. The reaction mixture was quenched with glacial acetic acid (430 ⁇ L, 7.5 mmol, 5.0 equiv) and concentrated by a nitrogen stream.
  • glacial acetic acid 430 ⁇ L, 7.5 mmol, 5.0 equiv
  • Compound 3 was also prepared in the following manner. 4-Amino-3-chloro-6-(4-chloro-2- fluoro-3-methoxyphenyl)picolinic acid (29.6 g, 89.39 mmol) was dissolved in anhydrous DMF (280 mL) under nitrogen. l,l'-Carbonyldiimidazole (16.16 g, 99.66 mmol, 1.1 equiv) was added. After stirring for 30 min, solid 0-allylhydroxylamine hydrochloride (l l.l l g, 101.41 mmol, 1.1 equiv) was added. After 3 h, the reaction mixture was poured into H 2 O (1400 mL).
  • Seeds or nutlets of the desired test plant species were planted in Sun Gro MetroMix® 360 planting mixture, which typically has a pH of 6.0 to 6.8 and an organic matter content of 30 percent, in plastic pots with a surface area of 64 square centimeters (cm ).
  • a fungicide treatment and/or other chemical or physical treatment was applied.
  • the plants were grown for 7-21 days (d) in a greenhouse with an approximate 15 -hour (h) photoperiod which was maintained at 23-29 0 C during the day and 22-28 0 C during the night.
  • Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000- Watt lamps as necessary. The plants were employed for testing when they reached the first or second true leaf stage.
  • a weighed amount, determined by the highest rate to be tested, of each test compound was dissolved in 4 mL of a 97:3 volume per volume (v/v) mixture of acetone and dimethyl sulfoxide (DMSO) to obtain concentrated stock solutions. If the test compound did not dissolve readily, the mixture was warmed and/or sonicated.
  • the concentrated stock solutions obtained were diluted with 20 mL of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Atplus 41 IF crop oil concentrate, and Triton® X-155 surfactant in a 48.5:39:10:1.5:1.0:0.02 v/v ratio to obtain spray solutions containing the highest application rates.
  • Additional application rates were obtained by serial dilution of 12 mL of the high rate solution into a solution containing 2 mL of 97:3 v/v mixture of acetone and DMSO and 10 mL of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Atplus 41 IF crop oil concentrate, and Triton® X-155 surfactant in a 48.5:39:10: 1.5: 1.0:0.02 v/v ratio to obtain 1/2X, 1/4X, 1/8X and 1/16X rates of the high rate.
  • Compound requirements are based upon a 12 mL application volume at a rate of 187 liters per hectare (L/ha).
  • Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 square meters (m 2 ) at a spray height of 18 inches (43 cm) above the average plant canopy height. Control plants were sprayed in the same manner with the solvent blank.
  • the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 14 d, the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
  • ZEAMX corn (Zea mays)
  • CHEAL lambsquarters (Chenopodium album)
  • ABUTH velvetleaf (Abutilon theophrasti)
  • Seeds of corn and the desired weed species were planted in Sun Gro MetroMix® 360 planting mixture, which typically has a pH of 6.0 to 6.8 and an organic matter content of 30 percent, in plastic pots with a surface area of 95 cm 2 .
  • a fungicide treatment and/or other chemical or physical treatment was applied.
  • the plants were grown for 7-21 d in a greenhouse with an approximate 15-h photoperiod which was maintained at 23-29 0 C during the day and 22-28 0 C during the night.
  • Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000-Watt lamps as necessary.
  • the corn plants were utilized for testing when they reached the second true leaf stage.
  • the weed species were utilized at the first or second true leaf stage.
  • a weighed amount, determined by the highest rate to be tested, of each test compound was dissolved in 4 mL of a 97:3 v/v mixture of acetone and DMSO to obtain concentrated stock solutions. If the test compound did not dissolve readily, the mixture was warmed and/or sonicated.
  • the concentrated stock solutions obtained were diluted with 20 mL of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Atplus 41 IF crop oil concentrate, and Triton® X-155 surfactant in a 48.5:39:10:1.5:1.0:0.02 v/v ratio to obtain spray solutions containing the highest application rates.
  • Additional application rates were obtained by serial dilution of 12 mL of the high rate solution into a solution containing 2 mL of 97:3 v/v mixture of acetone and DMSO and 10 mL of an aqueous mixture containing acetone, water, isopropyl alcohol, DMSO, Atplus 41 IF crop oil concentrate, and Triton X- 155 surfactant in a 48.5:39:10:1.5:1.0:0.02 v/v ratio to obtain 1/2X, 1/4X, 1/8X and 1/16X rates of the high rate.
  • Compound requirements are based upon a 12 mL application volume at a rate of 187 L/ha.
  • Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 m at a spray height of 18 inches (43 cm) above the average plant canopy height. Control plants were sprayed in the same manner with the solvent blank.
  • the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 21 d, the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
  • GR 2 0 and GRgo values are defined as growth reduction factors that correspond to the effective dose of herbicide required to kill or control 20 percent or 80 percent, respectively, of a target plant.
  • ZEAMX corn (Zea mays)
  • CASOB sicklepod (Casia obtusifolia)
  • POLCO wild buckwheat (Polygonum convululus)
  • AMARE pigweed, redroot (Amaranthus retroflexus)
  • CHEAL lambsquarters (Chenopodium album)
  • MetroMix® 360 planting mixture which typically has a pH of 6.0 to 6.8 and an organic matter content of 30 percent, in plastic pots with a surface area of 95 cm 2 .
  • a fungicide treatment and/or other chemical or physical treatment was applied.
  • the plants were grown for 15-28 d in a greenhouse with an approximate 15-h photoperiod which was maintained at 23-29 0 C during the day and 22-28 0 C during the night.
  • Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000-Watt lamps as necessary.
  • the sugar beet plants were utilized for testing when they reached the third or fourth true leaf stage.
  • the weed species were utilized at the fourth true leaf stage.
  • a weighed amount, determined by the highest rate to be tested, of each test compound was dissolved in 4 mL of a 97:3 v/v mixture of acetone and DMSO to obtain concentrated stock solutions. If the test compound did not dissolve readily, the mixture was warmed and/or sonicated.
  • the concentrated stock solutions obtained were diluted with 20 mL of an aqueous mixture containing acetone, water and Agri-Dex crop oil concentrate, in a 16.7:82.1:1.25 v/v ratio to obtain spray solutions containing the highest application rates.
  • Additional application rates were obtained by serial dilution of 12 mL of the high rate solution into a solution containing 2 mL of 97:3 v/v mixture of acetone and DMSO and 10 mL of an aqueous mixture containing acetone, water and Agri-Dex crop oil concentrate, in a 16.7:82.1:1.25 v/v ratio to obtain 1/2X, 1/4X, 1/8X and 1/16X rates of the high rate.
  • Compound requirements are based upon a 12 mL application volume at a rate of 187 L/ha.
  • Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 m 2 at a spray height of 18 inches (43 cm) above the average plant canopy height. Control plants were sprayed in the same manner with the solvent blank.
  • the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 21 d, the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
  • GR 2 0 and GRso values are defined as growth reduction factors that correspond to the effective dose of herbicide required to kill or control 20 percent or 80 percent, respectively, of a target plant.
  • BEAVA sugar beet (Beta vulgaris)
  • CHEAL lambsquarters (Chenopodium album)
  • LAMPU purple deadnettle (Lamium purpureum)
  • oilseed rape canola
  • desired weed species were planted in Sun Gro
  • MetroMix® 360 planting mixture which typically has a pH of 6.0 to 6.8 and an organic matter content of 30 percent, in plastic pots with a surface area of 95 cm 2 .
  • a fungicide treatment and/or other chemical or physical treatment was applied.
  • the plants were grown for 15-28 d in a greenhouse with an approximate 15-h photoperiod which was maintained at 23-29 0 C during the day and 22-28 0 C during the night.
  • Nutrients and water were added on a regular basis and supplemental lighting was provided with overhead metal halide 1000-Watt lamps as necessary.
  • the oilseed rape (canola) plants were utilized for testing when they reached the third or fourth true leaf stage.
  • the weed species were utilized at the fourth true leaf stage.
  • a weighed amount, determined by the highest rate to be tested, of each test compound was dissolved in 4 mL of a 97:3 v/v mixture of acetone and DMSO to obtain concentrated stock solutions. If the test compound did not dissolve readily, the mixture was warmed and/or sonicated.
  • the concentrated stock solutions obtained were diluted with 20 mL of an aqueous mixture containing acetone, water and Agri-Dex crop oil concentrate, in a 16.7:82.1:1.25 v/v ratio to obtain spray solutions containing the highest application rates.
  • Additional application rates were obtained by serial dilution of 12 mL of the high rate solution into a solution containing 2 mL of 97:3 v/v mixture of acetone and DMSO and 10 mL of an aqueous mixture containing acetone, water and Agri-Dex crop oil concentrate, in a 16.7:82.1:1.25 v/v ratio to obtain 1/2X, 1/4X, 1/8X and 1/16X rates of the high rate.
  • Compound requirements are based upon a 12 mL application volume at a rate of 187 L/ha.
  • Formulated compounds were applied to the plant material with an overhead Mandel track sprayer equipped with 8002E nozzles calibrated to deliver 187 L/ha over an application area of 0.503 m 2 at a spray height of 18 inches (43 cm) above the average plant canopy height. Control plants were sprayed in the same manner with the solvent blank.
  • the treated plants and control plants were placed in a greenhouse as described above and watered by sub-irrigation to prevent wash-off of the test compounds. After 21 d, the condition of the test plants as compared with that of the untreated plants was determined visually and scored on a scale of 0 to 100 percent where 0 corresponds to no injury and 100 corresponds to complete kill.
  • GR 2 0 and GRgo values are defined as growth reduction factors that correspond to the effective dose of herbicide required to kill or control 20 percent or 80 percent, respectively, of a target plant.
  • BRSNW winter oilseed rape (canola) (Brassica napus)
  • CHEAL lambsquarters (Chenopodium album)
  • LAMPU purple deadnettle (Lamium purpureun ⁇ )

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Abstract

La présente invention concerne des N-alcoxy-amides de 4-aminopicolinates et de 4-pyrimidinecarboxylates de formule (I) en tant qu'herbicides sélectifs pour le maïs, le colza et la betterave sucrière.
EP10706859.5A 2009-02-27 2010-02-25 N-alcoxy-amides de 6-(phényle substitué)-4-aminopicolinates et de 2-(phényle substitué)-6-amino-4-pyrimidinecarboxylates et leur utilisation comme herbicides sélectifs pour les cultures Not-in-force EP2421832B1 (fr)

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PL10706859T PL2421832T3 (pl) 2009-02-27 2010-02-25 N-alkoksyamidy 6-(podstawionych fenylo)-4-aminopikolinianów i 2-(podstawionych fenylo)-6-amino-4-pirymidynokarboksylanów oraz ich zastosowanie jako selektywnych herbicydów dla roślin uprawnych

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US15608809P 2009-02-27 2009-02-27
PCT/US2010/025342 WO2010099279A1 (fr) 2009-02-27 2010-02-25 N-alcoxy-amides de 6-(phényle substitué)-4-aminopicolinates et de 2-(phényle substitué)-6-amino-4-pyrimidinecarboxylates et leur utilisation comme herbicides sélectifs pour les cultures

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MX2013006693A (es) 2010-12-16 2013-07-29 Bayer Ip Gmbh 6-(2-aminofenil)-picolinatos y su uso como herbicidas.
US8835409B2 (en) * 2011-01-25 2014-09-16 Dow Agrosciences, Llc. 3-alkenyl-6-halo-4-aminopicolinates and their use as herbicides
US8916499B2 (en) 2012-07-24 2014-12-23 Dow Agrosciences, Llc. Herbicidal compositions comprising 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl) pyridine-2-carboxylic acid or a derivative thereof and a protoporphyrinogen oxidase inhibitor
CN110637815A (zh) 2013-01-10 2020-01-03 美国陶氏益农公司 安全化组合物
KR102192912B1 (ko) 2013-01-25 2020-12-21 다우 아그로사이언시즈 엘엘씨 선택적 잡초 방제 방법
CN105208864B (zh) 2013-03-12 2018-06-15 美国陶氏益农公司 包含4-氨基-3-氯-5-氟-6-(4-氯-2-氟-3-甲氧基苯基)吡啶-2-甲酸的除草组合物
US9113629B2 (en) * 2013-03-15 2015-08-25 Dow Agrosciences Llc 4-amino-6-(4-substituted-phenyl)-picolinates and 6-amino-2-(4-substituted-phenyl)-pyrimidine-4-carboxylates and their use as herbicides
CN113292502A (zh) * 2013-03-15 2021-08-24 美国陶氏益农公司 作为除草剂的新型的4-氨基吡啶和6-氨基嘧啶羧酸酯
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JP6543241B2 (ja) * 2013-03-15 2019-07-10 ダウ アグロサイエンシィズ エルエルシー ４−アミノ−６−（複素環式）ピコリネートおよび６−アミノ−２−（複素環式）ピリミジン−４−カルボキシレートならびに除草剤としてのそれらの使用
TWI689252B (zh) 2014-09-15 2020-04-01 美商陶氏農業科學公司 源自於施用吡啶羧酸除草劑與乙醯乳酸合成酶（ａｌｓ）抑制劑的協同性雜草控制
AR101858A1 (es) 2014-09-15 2017-01-18 Dow Agrosciences Llc Composiciones herbicidas protegidas que comprenden un herbicida de ácido piridincarboxílico
WO2016044276A1 (fr) 2014-09-15 2016-03-24 Dow Agrosciences Llc Lutte synergique contre les mauvaises herbes à partir d'applications d'herbicides à base d'acide carboxylique de pyridine et d'inhibiteurs du photosystème ii
TWI685302B (zh) 2014-09-15 2020-02-21 美商陶氏農業科學公司 包含吡啶羧酸除草劑之安全的除草組成物
TWI689251B (zh) 2014-09-15 2020-04-01 美商陶氏農業科學公司 源自於施用吡啶羧酸除草劑與合成生長素除草劑及/或生長素轉運抑制劑的協同性雜草控制
CN110740646B (zh) 2017-03-21 2022-05-10 Fmc公司 除草剂混合物、组合物和方法
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WO2021245083A1 (fr) 2020-06-04 2021-12-09 Bayer Aktiengesellschaft Hétérocyclyl pyridines en tant que nouveaux fongicides
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WO2010099279A1 (fr) 2010-09-02
BRPI1008770A2 (pt) 2015-08-25
BRPI1008770B8 (pt) 2018-07-31
PL2421832T3 (pl) 2014-05-30
US8889694B2 (en) 2014-11-18
MX2011009024A (es) 2011-09-29
EP2421832B1 (fr) 2013-12-18
US20100222221A1 (en) 2010-09-02
CA2750539A1 (fr) 2010-09-02
US20130324412A1 (en) 2013-12-05
US8536331B2 (en) 2013-09-17
BRPI1008770B1 (pt) 2017-02-21
AR075635A1 (es) 2011-04-20

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